DevTools: disable input event processing while auditing with lighthouse.

third_party/WebKit/Source/core/inspector/browser_protocol.json

 {
     "version": { "major": "1", "minor": "2" },
     "domains": [{
         "domain": "Inspector",
         "experimental": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications."
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             },
             {
                 "id": "GestureSourceType",
                 "type": "string",
                 "experimental": true,
                 "enum": ["default", "touch", "mouse"]
             }
         ],
         "commands": [
             {
+                "name": "setIgnoreInputEvents",
+                "parameters": [
+                    { "name": "ignore", "type": "boolean", "description": "Ignores input events processing when set to true." }
+                ],
+                "description": "Ignores input events (useful while auditing page)."
+            },
+            {
                 "name": "dispatchKeyEvent",
                 "parameters": [
                     { "name": "type", "type": "string", "enum": ["keyDown", "keyUp", "rawKeyDown", "char"], "description": "Type of the key event." },
                     { "name": "modifiers", "type": "integer", "optional": true, "description": "Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8 (default: 0)." },
                     { "name": "timestamp", "type": "number", "optional": true, "description": "Time at which the event occurred. Measured in UTC time in seconds since January 1, 1970 (default: current time)." },
                     { "name": "text", "type": "string", "optional": true, "description": "Text as generated by processing a virtual key code with a keyboard layout. Not needed for for <code>keyUp</code> and <code>rawKeyDown</code> events (default: \"\")" },
                     { "name": "unmodifiedText", "type": "string", "optional": true, "description": "Text that would have been generated by the keyboard if no modifiers were pressed (except for shift). Useful for shortcut (accelerator) key handling (default: \"\")." },
                     { "name": "keyIdentifier", "type": "string", "optional": true, "description": "Unique key identifier (e.g., 'U+0041') (default: \"\")." },
                     { "name": "code", "type": "string", "optional": true, "description": "Unique DOM defined string value for each physical key (e.g., 'KeyA') (default: \"\")." },
                     { "name": "key", "type": "string", "optional": true, "description": "Unique DOM defined string value describing the meaning of the key in the context of active modifiers, keyboard layout, etc (e.g., 'AltGr') (default: \"\")." },
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                 "parameters": [
                     { "name": "windowId", "$ref": "WindowID", "description": "Browser window id." }
                 ],
                 "returns": [
                     { "name": "bounds", "$ref": "Bounds", "description": "Bounds information of the window. When window state is 'minimized', the restored window position and size are returned." }
                 ]
             }
         ]
     }]
 }